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Sr. Staff Back-end engineer [Promise Platform]

Seattle💼 Full-time💰 $174,000–$174,000🗓 2026-09-15 → 2026-09-26

Core

Design and build a new Inventory and Promise platform to provide real-time inventory visibility and promised delivery dates, powering fulfillment orchestration for Coupang's Rocket Delivery service.

Role type

Sr. Staff Backend Engineer (Inventory & Promise Platform)

Builds

Microservices and machine learning pipelines for inventory management and delivery promise logic

Domain

eCommerce, Supply Chain, Logistics

Deliverable

production ML models | product features

Required skills

Distributed systems architecture, Microservices design, Machine learning pipeline integration, Stream processing (Kafka, Spark-Streaming), Data caching and storage, High availability engineering, Java, Scala, Python, AWS

Preferred skills

eCommerce supply chain domain knowledge, Full-stack high-scale production systems experience, Fault-tolerance and monitoring expertise

Responsibilities

Lead technical architecture for new microservices and ML pipelines, Decompose complex problems into scalable solutions, Mentor team members on advanced technical issues, Exert technical influence across multiple teams

Seniority

Sr. Staff, hands-on IC with mentorship responsibilities

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